The difference between Drill and Root

Drill as a verb (transitive):

To create (a hole) by removing material with a drill .

Drill as a verb (intransitive):

To practice, especially in (or as in) a military context.

Drill as a verb (ergative):

To cause to drill ; to train in military arts.

Drill as a verb (transitive):

To repeat an idea frequently in order to encourage someone to remember it.

Drill as a verb (intransitive):

To investigate or examine something in more detail or at a different level

Drill as a verb (transitive):

To hit or kick with a lot of power.

Drill as a verb (baseball):

To hit someone with a pitch, especially in an intentional context.

Drill as a verb (slang, vulgar):

To have sexual intercourse with; to penetrate.

Drill as a verb (transitive):

To cause to flow in drills or rills or by trickling; to drain by trickling.

Drill as a verb (transitive):

To sow (seeds) by dribbling them along a furrow or in a row.

Drill as a verb (transitive, obsolete):

To entice or allure; to decoy; with on.

Drill as a verb (transitive, obsolete):

To cause to slip or waste away by degrees.

Drill as a noun:

A tool used to remove material so as to create a hole, typically by plunging a rotating cutting bit into a stationary workpiece.

Drill as a noun:

The portion of a drilling tool that drives the bit.

Drill as a noun:

An agricultural implement for making holes for sowing seed, and sometimes so formed as to contain seeds and drop them into the hole made.

Drill as a noun:

A light furrow or channel made to put seed into, when sowing.

Drill as a noun:

A row of seed sown in a furrow.

Drill as a noun:

An activity done as an exercise or practice (especially a military exercise), particularly in preparation for some possible future event or occurrence.

Drill as a noun (obsolete):

A small trickling stream; a rill.

Drill as a noun:

Any of several molluscs, of the genus , especially the oyster drill (), that drill holes in the shells of other animals.

Drill as a noun (uncountable, music):

A style of trap music with gritty, violent lyrics, originating on the South Side of Chicago.

Drill as a noun:

An Old World monkey of West Africa, , similar in appearance to the mandrill, but lacking the colorful face.

Drill as a noun:

A strong, durable cotton fabric with a strong bias (diagonal) in the weave.

Root as a noun:

The part of a plant, generally underground, that anchors and supports the plant body, absorbs and stores water and nutrients, and in some plants is able to perform vegetative reproduction.

Root as a noun:

A root vegetable.

Root as a noun:

The part of a tooth extending into the bone holding the tooth in place.

Root as a noun:

The part of a hair under the skin that holds the hair in place.

Root as a noun:

The part of a hair near the skin that has not been dyed, permed, or otherwise treated.

Root as a noun:

The primary source; origin.

Root as a noun (arithmetic):

Of a number or expression, a number which, when raised to a specified power, yields the specified number or expression.

Root as a noun (arithmetic):

A square root (understood if no power is specified; in which case, “the root of” is often abbreviated to “root”).

Root as a noun (analysis):

A zero (of an equation).

Root as a noun (graph theory, computing):

The single node of a tree that has no parent.

Root as a noun (linguistic morphology):

The primary lexical unit of a word, which carries the most significant aspects of semantic content and cannot be reduced into smaller constituents. Inflectional stems often derive from roots.

Root as a noun (philology):

A word from which another word or words are derived.

Root as a noun (music):

The fundamental tone of any chord; the tone from whose harmonics, or overtones, a chord is composed.

Root as a noun:

The lowest place, position, or part.

Root as a noun (computing):

In UNIX terminology, the first user account with complete access to the operating system and its configuration, found at the root of the directory structure; the person who manages accounts on a UNIX system.

Root as a noun (computing):

The highest directory of a directory structure which may contain both files and subdirectories.

Root as a noun (slang):

A penis, especially the base of a penis.

Root as a verb:

To fix the root; to enter the earth, as roots; to take root and begin to grow.

Root as a verb:

To be firmly fixed; to be established.

Root as a verb (computing, slang, transitive):

To break into a computer system and obtain root access.

Root as a verb (ambitransitive):

To turn up or dig with the snout.

Root as a verb (by extension):

To seek favour or advancement by low arts or grovelling servility; to fawn.

Root as a verb (intransitive):

To rummage; to search as if by digging in soil.

Root as a verb (transitive):

To root out; to abolish.

Root as a verb (Australia, New Zealand, Ireland, vulgar, slang):

To have sexual intercourse.

Root as a verb (horticulture, intransitive):

To grow roots

Root as a verb (horticulture, transitive):

To prepare, oversee, or otherwise cause the rooting of cuttings

Root as a noun (Australia, New Zealand, vulgar, slang):

An act of sexual intercourse.

Root as a noun (Australia, New Zealand, vulgar, slang):

A sexual partner.

Root as a verb (intransitive, with "for" or "on", US):

To cheer (on); to show support (for) and hope for the success of.